SUSE SLED15 / SLES15 Security Update : kernel (SUSE-SU-2020:0836-1)

Low Nessus Plugin ID 135166

Synopsis

The remote SUSE host is missing one or more security updates.

Description

The SUSE Linux Enterprise 15-SP1 kernel was updated to receive various security and bugfixes.

The following security bugs were fixed :

CVE-2020-8647: Fixed a use-after-free in the vc_do_resize function in drivers/tty/vt/vt.c (bsc#1162929).

CVE-2020-8649: Fixed a use-after-free in the vgacon_invert_region function in drivers/video/console/vgacon.c (bsc#1162931).

CVE-2020-8648: Fixed a use-after-free in the n_tty_receive_buf_common function in drivers/tty/n_tty.c (bsc#1162928).

CVE-2020-9383: Fixed an out-of-bounds read due to improper error condition check of FDC index (bsc#1165111).

CVE-2019-19768: Fixed a use-after-free in the __blk_add_trace function in kernel/trace/blktrace.c (bnc#1159285).

The update package also includes non-security fixes. See advisory for details.

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Solution

To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or 'zypper patch'.

Alternatively you can run the command listed for your product :

SUSE Linux Enterprise Workstation Extension 15-SP1:zypper in -t patch SUSE-SLE-Product-WE-15-SP1-2020-836=1

SUSE Linux Enterprise Module for Open Buildservice Development Tools 15-SP1:zypper in -t patch SUSE-SLE-Module-Development-Tools-OBS-15-SP1-2020-836=1

SUSE Linux Enterprise Module for Live Patching 15-SP1:zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP1-2020-836=1

SUSE Linux Enterprise Module for Legacy Software 15-SP1:zypper in -t patch SUSE-SLE-Module-Legacy-15-SP1-2020-836=1

SUSE Linux Enterprise Module for Development Tools 15-SP1:zypper in -t patch SUSE-SLE-Module-Development-Tools-15-SP1-2020-836=1

SUSE Linux Enterprise Module for Basesystem 15-SP1:zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP1-2020-836=1

SUSE Linux Enterprise High Availability 15-SP1:zypper in -t patch SUSE-SLE-Product-HA-15-SP1-2020-836=1

See Also

https://bugzilla.suse.com/show_bug.cgi?id=1044231

https://bugzilla.suse.com/show_bug.cgi?id=1051510

https://bugzilla.suse.com/show_bug.cgi?id=1051858

https://bugzilla.suse.com/show_bug.cgi?id=1056686

https://bugzilla.suse.com/show_bug.cgi?id=1060463

https://bugzilla.suse.com/show_bug.cgi?id=1065729

https://bugzilla.suse.com/show_bug.cgi?id=1103990

https://bugzilla.suse.com/show_bug.cgi?id=1103992

https://bugzilla.suse.com/show_bug.cgi?id=1104353

https://bugzilla.suse.com/show_bug.cgi?id=1104745

https://bugzilla.suse.com/show_bug.cgi?id=1109837

https://bugzilla.suse.com/show_bug.cgi?id=1111666

https://bugzilla.suse.com/show_bug.cgi?id=1111974

https://bugzilla.suse.com/show_bug.cgi?id=1112178

https://bugzilla.suse.com/show_bug.cgi?id=1112374

https://bugzilla.suse.com/show_bug.cgi?id=1113956

https://bugzilla.suse.com/show_bug.cgi?id=1114279

https://bugzilla.suse.com/show_bug.cgi?id=1114685

https://bugzilla.suse.com/show_bug.cgi?id=1119680

https://bugzilla.suse.com/show_bug.cgi?id=1127611

https://bugzilla.suse.com/show_bug.cgi?id=1133021

https://bugzilla.suse.com/show_bug.cgi?id=1134090

https://bugzilla.suse.com/show_bug.cgi?id=1136157

https://bugzilla.suse.com/show_bug.cgi?id=1141895

https://bugzilla.suse.com/show_bug.cgi?id=1144333

https://bugzilla.suse.com/show_bug.cgi?id=1146539

https://bugzilla.suse.com/show_bug.cgi?id=1156510

https://bugzilla.suse.com/show_bug.cgi?id=1157424

https://bugzilla.suse.com/show_bug.cgi?id=1158187

https://bugzilla.suse.com/show_bug.cgi?id=1159285

https://bugzilla.suse.com/show_bug.cgi?id=1160659

https://bugzilla.suse.com/show_bug.cgi?id=1161561

https://bugzilla.suse.com/show_bug.cgi?id=1161951

https://bugzilla.suse.com/show_bug.cgi?id=1162928

https://bugzilla.suse.com/show_bug.cgi?id=1162929

https://bugzilla.suse.com/show_bug.cgi?id=1162931

https://bugzilla.suse.com/show_bug.cgi?id=1164078

https://bugzilla.suse.com/show_bug.cgi?id=1164507

https://bugzilla.suse.com/show_bug.cgi?id=1165111

https://bugzilla.suse.com/show_bug.cgi?id=1165404

https://bugzilla.suse.com/show_bug.cgi?id=1165488

https://bugzilla.suse.com/show_bug.cgi?id=1165527

https://bugzilla.suse.com/show_bug.cgi?id=1165741

https://bugzilla.suse.com/show_bug.cgi?id=1165813

https://bugzilla.suse.com/show_bug.cgi?id=1165873

https://bugzilla.suse.com/show_bug.cgi?id=1165929

https://bugzilla.suse.com/show_bug.cgi?id=1165950

https://bugzilla.suse.com/show_bug.cgi?id=1165980

https://bugzilla.suse.com/show_bug.cgi?id=1165984

https://bugzilla.suse.com/show_bug.cgi?id=1165985

https://bugzilla.suse.com/show_bug.cgi?id=1166003

https://bugzilla.suse.com/show_bug.cgi?id=1166101

https://bugzilla.suse.com/show_bug.cgi?id=1166102

https://bugzilla.suse.com/show_bug.cgi?id=1166103

https://bugzilla.suse.com/show_bug.cgi?id=1166104

https://bugzilla.suse.com/show_bug.cgi?id=1166632

https://bugzilla.suse.com/show_bug.cgi?id=1166658

https://bugzilla.suse.com/show_bug.cgi?id=1166730

https://bugzilla.suse.com/show_bug.cgi?id=1166731

https://bugzilla.suse.com/show_bug.cgi?id=1166732

https://bugzilla.suse.com/show_bug.cgi?id=1166733

https://bugzilla.suse.com/show_bug.cgi?id=1166734

https://bugzilla.suse.com/show_bug.cgi?id=1166735

https://www.suse.com/security/cve/CVE-2019-19768/

https://www.suse.com/security/cve/CVE-2020-8647/

https://www.suse.com/security/cve/CVE-2020-8648/

https://www.suse.com/security/cve/CVE-2020-8649/

https://www.suse.com/security/cve/CVE-2020-9383/

http://www.nessus.org/u?b3bd5f7b

Plugin Details

Severity: Low

ID: 135166

File Name: suse_SU-2020-0836-1.nasl

Version: 1.2

Type: local

Agent: unix

Published: 2020/04/02

Updated: 2020/04/06

Dependencies: 12634

Risk Information

Risk Factor: Low

CVSS Score Source: CVE-2020-9383

CVSS v2.0

Base Score: 3.6

Temporal Score: 2.7

Vector: CVSS2#AV:L/AC:L/Au:N/C:P/I:N/A:P

Temporal Vector: CVSS2#E:U/RL:OF/RC:C

CVSS v3.0

Base Score: 7.1

Temporal Score: 6.2

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:novell:suse_linux:kernel-debug, p-cpe:/a:novell:suse_linux:kernel-debug-base, p-cpe:/a:novell:suse_linux:kernel-debug-base-debuginfo, p-cpe:/a:novell:suse_linux:kernel-debug-debuginfo, p-cpe:/a:novell:suse_linux:kernel-debug-debugsource, p-cpe:/a:novell:suse_linux:kernel-debug-devel, p-cpe:/a:novell:suse_linux:kernel-debug-devel-debuginfo, p-cpe:/a:novell:suse_linux:kernel-debug-livepatch-devel, p-cpe:/a:novell:suse_linux:kernel-default, p-cpe:/a:novell:suse_linux:kernel-default-base, p-cpe:/a:novell:suse_linux:kernel-default-base-debuginfo, p-cpe:/a:novell:suse_linux:kernel-default-debuginfo, p-cpe:/a:novell:suse_linux:kernel-default-debugsource, p-cpe:/a:novell:suse_linux:kernel-default-devel, p-cpe:/a:novell:suse_linux:kernel-default-devel-debuginfo, p-cpe:/a:novell:suse_linux:kernel-default-livepatch, p-cpe:/a:novell:suse_linux:kernel-default-man, p-cpe:/a:novell:suse_linux:kernel-kvmsmall, p-cpe:/a:novell:suse_linux:kernel-kvmsmall-base, p-cpe:/a:novell:suse_linux:kernel-kvmsmall-base-debuginfo, p-cpe:/a:novell:suse_linux:kernel-kvmsmall-debuginfo, p-cpe:/a:novell:suse_linux:kernel-kvmsmall-debugsource, p-cpe:/a:novell:suse_linux:kernel-kvmsmall-devel, p-cpe:/a:novell:suse_linux:kernel-kvmsmall-devel-debuginfo, p-cpe:/a:novell:suse_linux:kernel-kvmsmall-livepatch-devel, p-cpe:/a:novell:suse_linux:kernel-obs-build, p-cpe:/a:novell:suse_linux:kernel-obs-build-debugsource, p-cpe:/a:novell:suse_linux:kernel-obs-qa, p-cpe:/a:novell:suse_linux:kernel-syms, p-cpe:/a:novell:suse_linux:kernel-vanilla, p-cpe:/a:novell:suse_linux:kernel-vanilla-base, p-cpe:/a:novell:suse_linux:kernel-vanilla-base-debuginfo, p-cpe:/a:novell:suse_linux:kernel-vanilla-debuginfo, p-cpe:/a:novell:suse_linux:kernel-vanilla-debugsource, p-cpe:/a:novell:suse_linux:kernel-vanilla-devel, p-cpe:/a:novell:suse_linux:kernel-vanilla-devel-debuginfo, p-cpe:/a:novell:suse_linux:kernel-vanilla-livepatch-devel, p-cpe:/a:novell:suse_linux:kernel-zfcpdump-debuginfo, p-cpe:/a:novell:suse_linux:kernel-zfcpdump-debugsource, p-cpe:/a:novell:suse_linux:kernel-zfcpdump-man, p-cpe:/a:novell:suse_linux:kselftests-kmp-default, p-cpe:/a:novell:suse_linux:kselftests-kmp-default-debuginfo, p-cpe:/a:novell:suse_linux:reiserfs-kmp-default, p-cpe:/a:novell:suse_linux:reiserfs-kmp-default-debuginfo, cpe:/o:novell:suse_linux:15

Required KB Items: Host/local_checks_enabled, Host/cpu, Host/SuSE/release, Host/SuSE/rpm-list

Exploit Ease: No known exploits are available

Patch Publication Date: 2020/03/31

Vulnerability Publication Date: 2019/12/12

Reference Information

CVE: CVE-2019-19768, CVE-2020-8647, CVE-2020-8648, CVE-2020-8649, CVE-2020-9383